Require that we're using Rails 4.1.x, minimum 4.1.4
Require that we're using Rails 4.1.x, minimum 4.1.4

Fixes #2590

mlinfoot/refinerycms,stefanspicer/refinerycms,chrise86/refinerycms,gwagener/refinerycms,Eric-Guo/refinerycms,Retimont/refinerycms,kappiah/refinerycms,KingLemuel/refinerycms,chrise86/refinerycms,mabras/refinerycms,Retimont/refinerycms,bricesanchez/refinerycms,stefanspicer/refinerycms,johanb/refinerycms,simi/refinerycms,LytayTOUCH/refinerycms,mlinfoot/refinerycms,mlinfoot/refinerycms,mabras/refinerycms,sideci-sample/sideci-sample-refinerycms,simi/refinerycms,bricesanchez/refinerycms,hoopla-software/refinerycms,KingLemuel/refinerycms,mabras/refinerycms,Eric-Guo/refinerycms,mkaplan9/refinerycms,refinery/refinerycms,trevornez/refinerycms,refinery/refinerycms,mkaplan9/refinerycms,LytayTOUCH/refinerycms,simi/refinerycms,LytayTOUCH/refinerycms,johanb/refinerycms,johanb/refinerycms,refinery/refinerycms,hoopla-software/refinerycms,trevornez/refinerycms,gwagener/refinerycms,kappiah/refinerycms,anitagraham/refinerycms,aguzubiaga/refinerycms,aguzubiaga/refinerycms,chrise86/refinerycms,mkaplan9/refinerycms,aguzubiaga/refinerycms,hoopla-software/refinerycms,gwagener/refinerycms,kappiah/refinerycms,KingLemuel/refinerycms,anitagraham/refinerycms,Retimont/refinerycms,Eric-Guo/refinerycms,stefanspicer/refinerycms,simi/refinerycms,anitagraham/refinerycms,sideci-sample/sideci-sample-refinerycms,trevornez/refinerycms